Takaab VCO-3340 - Analogue Voltage Controlled Oscillator Sequencer The result is A*B effectively

The result is A*B effectively kicks out the sum and difference between the frequencies of the two input signals

Besides the OCTAVE and TUNE controls

but should already be trimmed to +/-5V when it ships

scope or very good ears)

The 4NOT is essentially just a comparator

Takaab VCO-3340 - Analogue Voltage Controlled Oscillator Sequencer The result is A*B effectivelyA stable, reliable analogue VCO with a rich warm sound. The design is based around the AS3340 triangle core oscillator IC which itself was based on the legendary Curtis CEM3340. We have ironed out the quirks of the AS chip so it now sounds and behaves just as good as the CEM3340. The addition of an 11 pole + 5 octave switch makes it useful and reliable as a live VCO. The center position being approx C1 means it can be pitched down well into down into